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Lizards

Analysis and Comment (4)

A green anole, clinging to a palm frond with nicely silhouetted toepads. Yoel Stuart

Invasive species trigger rapid evolution for lizards in Florida

Invasive species colonize and spread widely in places where they are not normally found. Invasives often affect native species by eating them, out-competing them and introducing unfamiliar parasites and…
Since the early 20th century, there have been claims that dinosaurs were warm-blooded. Bharath Kishore

Hot fuss: is warm-blooded dinosaur theory right or wrong?

Mark Twain reputedly said it wasn’t what he didn’t know that bothered him, but what he knew that wasn’t true. A recent contribution on dinosaur physiology in Nature, by palaeontologist Meike Köhler and…

Research Briefs (5)

Bigger doesn’t always mean faster

Larger animals with longer legs aren’t always the fastest when sprinting, but then neither are smaller animals. Researchers…